1 Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington DC 20013, USA.
2 Department of Geology, University of Cincinnati, Cincinnati, Ohio 45221, USA.
3 Department of Environmental Science and Biology, The College at Brockport - SUNY, Brockport, New York 14420, USA.
4 School of Natural Sciences, University of California, Merced, 5200 North Lake Road, Merced, California 95343, USA.
5 Department of Geology and Geophysics, Yale University, New Haven, Connecticut 06520, USA.
6 Hominid Paleobiology Doctoral Program, Center for the Advanced Study of Hominid Paleobiology, Department of Anthropology, George Washington University, Washington DC 20052, USA.
7 Department of Geosciences and Geography, University of Helsinki, 00014 Helsinki, Finland.
8 School of Social Science, The University of Queensland, Brisbane, Queensland 4072, Australia.
9 Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington DC 20013, USA.
10 Center for Macroecology, Evolution and Climate, University of Copenhagen, Copenhagen 2100, Denmark.
11 Florida Museum of Natural History, University of Florida, Gainesville, Florida 32611, USA.
12 Department of Entomology, University of Maryland College Park, College Park, Maryland 20742, USA.
13 Key Lab of Insect Evolution and Environmental Changes, Capital Normal University, Beijing 100048, China.
14 Department of Integrative Biology and Museum of Paleontology, University of California Berkeley, Berkeley, California 94720, USA.
15 School Biology and Ecology &Sustainability Solutions Initiative, University of Maine, Orono, Maine 04469, USA.
16 Department of Anthropology, Human Origins Program, National Museum of Natural History, Smithsonian Institution, Washington DC 20013, USA.
17 School of Life Sciences, University of Nevada-Las Vegas, Las Vegas, Nevada 89154, USA.
18 Department of Integrative Biology, Oregon State University, Corvallis, Oregon 97731, USA.
19 Chair of Ecology and Biogeography, Nicolaus Copernicus University, Lwowska 1, 87-100 Torun, Poland.
20 Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg 20150, South Africa.
21 Department of Biology, University of Vermont, Burlington, Vermont 05405, USA.